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Ultrathin, Lightweight, and Flexible CNT Buckypaper Enhanced Using MXenes for Electromagnetic Interference Shielding

查看全文 作　　者：Rongliang [1]Yang;Xuchun [1]Gui;Li [2]Yao;Qingmei [1]Hu;Leilei [1]Yang;Hao [3]Zhang;Yongtao [4]Yao;Hui [2]Mei;Zikang [5]Tang 高影响力作者 机构地区：[1]State Key Laboratory of Optoelectronic Materials and Technologies,School of Electronics and Information Technology,Sun Yat-Sen University,Guangzhou 510275,People’s Republic of China;[2]Science and Technology on Thermostructural Composite Materials Laboratory,School of Materials Science and Engineering,Northwestern Polytechnical University,Xi’an 710072,Shaanxi,People’s Republic of China;[3]Instrumental Analysis and Research Center(IARC),Sun Yat-Sen University,Guangzhou 510275,People’s Republic of China;[4]National Key Laboratory of Science and Technology on Advanced Composites in Special Environments,Harbin Institute of Technology,Harbin 150080,People’s Republic of China;[5]Institute of Applied Physics and Materials Engineering,University of Macao,Taipa 999078,Macao,People’s Republic of China高影响力机构 出　　处：《Nano-Micro Letters》索引2021年第13卷第4期,共13页高影响力期刊 基　　金：National Natural Science Foundation of China(Grant Nos.52072415,52072306 and 51772335);the Science and Technology Program of Guangzhou(201904010450);Science Foundation of the National Key Laboratory of Science and Technology on Advanced Composites in Special Environments(6142905192509). 摘　　要：Lightweight,flexibility,and low thickness are urgent requirements for next-generation high-performance electromagnetic interference(EMI)shielding materials for catering to the demand for smart and wearable electronic devices.Although several efforts have focused on constructing porous and flexible conductive films or aerogels,few studies have achieved a balance in terms of density,thickness,flexibility,and EMI shielding effectiveness(SE).Herein,an ultrathin,lightweight,and flexible carbon nanotube(CNT)buckypaper enhanced using MXenes(Ti3C2Tx)for high-performance EMI shielding is synthesized through a facile electrophoretic deposition process.The obtained Ti3C2Tx@CNT hybrid buckypaper exhibits an outstanding EMI SE of 60.5 dB in the X-band at 100μm.The hybrid buckypaper with an MXene content of 49.4 wt%exhibits an EMI SE of 50.4 dB in the X-band with a thickness of only 15μm,which is 105%higher than that of pristine CNT buckypaper.Furthermore,an average specific SE value of 5.7×10^(4) dB cm^(2) g^(−1) is exhibited in the 5-μm hybrid buckypaper.Thus,this assembly process proves promising for the construction of ultrathin,flexible,and high-performance EMI shielding films for application in electronic devices and wireless communications. 关 键 词：Carbon nanotube MXene BUCKYPAPER Electromagnetic interference shielding
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